BR112013031148A2 - Methods for Separation of Alkylene Oxide Using Distillation Extraction Columns - Google Patents

Methods for Separation of Alkylene Oxide Using Distillation Extraction Columns

Info

Publication number
BR112013031148A2
BR112013031148A2 BR112013031148A BR112013031148A BR112013031148A2 BR 112013031148 A2 BR112013031148 A2 BR 112013031148A2 BR 112013031148 A BR112013031148 A BR 112013031148A BR 112013031148 A BR112013031148 A BR 112013031148A BR 112013031148 A2 BR112013031148 A2 BR 112013031148A2
Authority
BR
Brazil
Prior art keywords
propylene oxide
methods
stream
separation
oxide stream
Prior art date
Application number
BR112013031148A
Other languages
Portuguese (pt)
Inventor
David W Leyshon
Te Chang
Xiangmin Li
Original Assignee
Lyondell Chemical Tech Lp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lyondell Chemical Tech Lp filed Critical Lyondell Chemical Tech Lp
Publication of BR112013031148A2 publication Critical patent/BR112013031148A2/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
    • C07D303/02—Compounds containing oxirane rings
    • C07D303/04—Compounds containing oxirane rings containing only hydrogen and carbon atoms in addition to the ring oxygen atoms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
    • B01D3/40—Extractive distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D301/00—Preparation of oxiranes
    • C07D301/02—Synthesis of the oxirane ring
    • C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
    • C07D301/19—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with organic hydroperoxides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D301/00—Preparation of oxiranes
    • C07D301/32—Separation; Purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Epoxy Compounds (AREA)

Abstract

resumo patente de invenção: "métodos para a separação de óxido de alquileno utilizando colunas de extração por destilação". a presente invenção refere-se a um processo para separar óxido de propileno para uma corrente de óxido de propileno bruto, por exemplo, uma corrente intermediária de um processo de po/tba. a corrente de óxido de propileno bruto pode ser passada através de uma coluna de destilação extrativa. a coluna de destilação é operada em uma pressão em uma faixa maior do que 172,38 a 344.73 kpa (25 até 50 psig), e/ou em uma temperatura em uma faixa de 70 a 150 graus celsius usando parafina c8-c20 como solvente extrativo com um tambor de lavagem com água de destilado de topo. a corrente de óxido de propileno bruto inclui de 0,001 a 0,1% em peso de metanol, com base na composição total da corrente de óxido de propileno bruto. os sistemas, métodos, e aparelhos podem produzir uma corrente de óxido de propileno tendo menos formaldeído e acetaldeído do que a técnica anterior.patent summary: "methods for the separation of alkylene oxide using distillation extraction columns". The present invention relates to a process for separating propylene oxide into a crude propylene oxide stream, for example an intermediate stream of a pol / tba process. The crude propylene oxide stream may be passed through an extractive distillation column. The distillation column is operated at a pressure in a range greater than 172.38 to 344.73 kpa (25 to 50 psig), and / or at a temperature in a range of 70 to 150 degrees celsius using c8-c20 paraffin as solvent. with a top distillate water wash drum. The crude propylene oxide stream includes from 0.001 to 0.1% by weight of methanol, based on the total composition of the crude propylene oxide stream. systems, methods, and apparatus may produce a propylene oxide stream having less formaldehyde and acetaldehyde than the prior art.

BR112013031148A 2011-06-07 2012-06-07 Methods for Separation of Alkylene Oxide Using Distillation Extraction Columns BR112013031148A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/155,136 US8981133B2 (en) 2011-06-07 2011-06-07 Alkylene oxide separation systems, methods, and apparatuses
PCT/US2012/041349 WO2012170685A1 (en) 2011-06-07 2012-06-07 Methods for alkylene oxide separation using extractive destillation columns

Publications (1)

Publication Number Publication Date
BR112013031148A2 true BR112013031148A2 (en) 2016-08-16

Family

ID=46321476

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112013031148A BR112013031148A2 (en) 2011-06-07 2012-06-07 Methods for Separation of Alkylene Oxide Using Distillation Extraction Columns

Country Status (8)

Country Link
US (1) US8981133B2 (en)
EP (1) EP2718274B1 (en)
JP (1) JP6105568B2 (en)
KR (1) KR101627439B1 (en)
CN (1) CN103562192B (en)
BR (1) BR112013031148A2 (en)
ES (1) ES2658153T3 (en)
WO (1) WO2012170685A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9593090B2 (en) * 2013-07-29 2017-03-14 Lyondell Chemical Technology, L.P. Alkylene oxide separation systems, methods, and apparatuses
KR101777228B1 (en) * 2016-08-05 2017-09-26 한전원자력연료 주식회사 Module type extraction column
CN109851590A (en) * 2017-11-30 2019-06-07 中国石油化工股份有限公司 The purification process of propylene oxide
CN110003136B (en) * 2019-04-26 2023-08-01 江苏扬农化工集团有限公司 Method and device for removing aldehyde ketone impurities in HPPO process by using efficient auxiliary agent
CN112694455B (en) * 2019-10-23 2023-08-08 中国石油化工股份有限公司 System and method for hydrogenation removal of aldehydes and ketones

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Also Published As

Publication number Publication date
KR101627439B1 (en) 2016-06-03
WO2012170685A1 (en) 2012-12-13
JP6105568B2 (en) 2017-03-29
CN103562192B (en) 2016-08-17
CN103562192A (en) 2014-02-05
US20120312680A1 (en) 2012-12-13
EP2718274B1 (en) 2018-01-24
ES2658153T3 (en) 2018-03-08
JP2014517011A (en) 2014-07-17
KR20140044847A (en) 2014-04-15
EP2718274A1 (en) 2014-04-16
US8981133B2 (en) 2015-03-17

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B07A Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]
B12B Appeal: appeal against refusal
B350 Update of information on the portal [chapter 15.35 patent gazette]